libctf: avoid potential double free

* ctf-link.c (ctf_link_add_cu_mapping): Set t NULL after free.
4 years ago · 57336e2e4d
1 changed files with 4 additions and 1 deletions
--- a/libctf/ctf-link.c
+++ b/libctf/ctf-link.c
@ -431,7 +431,10 @@ ctf_link_add_cu_mapping (ctf_dict_t *fp, const char *from, const char *to)
 	}
    }
  else
-    free (t);
+    {
+      free (t);
+      t = NULL;
+    }

  if (ctf_dynhash_insert (one_out, f, NULL) < 0)
    {